Presently , there is no Converter plugin for this purpose.
You can either copy posts from Frontpage and publish from WordPress, or you can try Google Blog Converters
You can edit the head.js file of your blog because that is the javascript file that loads javascripts asychronously.
But, make a backup of website before attempting this.
Any search engine automatically indexes all content unless it is specifically blocked to search robots using robots.txt
Check the url : site.com/robots.txt and see the settings.
You can access that setting in the User’s Profile.
If that doesn’t get the job done, contact the plugin author.
As per the plugin feature highlights Site registered users can have their chat nicknames reserved is an option.